What is the heart?

What is the heart?

Parent & Teacher Guidance
What is the heart?

Every living person has one thing in common. We all have a heart! Without a heart, no one would be able to live.

  • The heart is a huge pump the size of a closed fist.
  • It's really a muscle.
  • The heart's job is to pump blood around the body.
  • It moves deoxygenated blood through the veins on to the lungs to receive oxygen before then pumping it into the arteries.
  • It is then the job of the arteries to move oxygen and nutrition to the body's tissue by carrying blood throughout the body.
  • The heart is located in the cavity next to the lungs and behind the chest bone.

 

Heart facts. The heart:

  • Is about the size of a pear
  • weighs about the same as two apples.
  • pumps blood so that it goes once around the body in about a minute.
  • beats 60 to 100 times per minute. The heart of a newborn baby beats between 130 and 160 times a minute.
  • beats about 100,000 times a day, and 2.5 billion times during your lifetime.

 

Heart disease

If someone eats too much fat, it builds up in the arteries. The heart has to work harder to pump the blood through them. Eventually, the person suffers from heart disease and may have a heart attack.

How to avoid heart disease:

  • exercise regularly – up to 30 minutes a day. The heart will beat harder and become stronger.
  • not eating too much fat – this will keep the arteries clear
  • healthy living – not smoking or taking drugs and not drinking too much alcohol.

 

How did the heart become a symbol of love?

People used to think that a person's soul lived in the heart. So, they thought a person made spiritual, moral, and emotional decisions in their heart.

Over the centuries, the heart became a symbol of love. The heart is usually red, a colour that conveys blood and also emotion and passion.

Glossary
Passion
Very strong feeling
Soul
The ‘Spirit’ of a person
Arteries
The vessels the blood passes through
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